50 Pcs Black PG9 3.5-8mm 14.5mm Dia Waterproof Cable Glands Fastener Connector Pulleys-For Lifting Two screw hole connections to

Two screw hole connections to get the air in and out

exceptions

please make sure you know the install and connection methods before you buy it

Used to all kinds of vacuum cleaner coil spring

durable and can serve a long life

50 Pcs Black PG9 3.5-8mm 14.5mm Dia Waterproof Cable Glands Fastener Connector Pulleys-For Lifting Two screw hole connections toUsed for fixing cables, waterproof design. Special design of the clamping die and rubber part, wide clamping range, strong stretching resistance, no damage to cables and devices. Without disassembly, cable can be inserted through directly then tightened easily. Applicable to machinery control boxes, distribution panels, electrical appliances, machines, etc.